My Loyal Knight Bound to the Princess

Princess Fiona hides her revenge plan behind a reckless facade. Pope Walter murdered her mother and manipulated her brother Leo to rule. Ares, dispatched as a spy to seduce Fiona, swears loyalty and falls for her after saving her from assassins. Exposed, they fake a ruse to trap Walter. With Leo and allies, they defeat the tyrant. Fiona yields the crown to Leo and lives happily with Ares, her loyal knight.